Endocrinesytem and hypothalamus and pituitary and a little bit of skeletal muscle

What cell type comprise the hypothalamus, anterior and posterior pituitary gland?

neurons and endocrine epithelium

What hormones are secreted from the hypothalamus?

GHRH, GHIH,TRH, CRH, PIH, GnRH

Are all of the hormones produced in the hypothalamus secreted from the hypothalamus?

NO

What is the role of oxytocin in the female? Does it have any actions on men?

• Contractions of uterus

  • yes increased secretion in both sexes during sexual arousal

What would happen to someone that had reduced amounts of ADH secretion? What would happen to their blood volume? What would happen to their urine output?

• decreased blood volume

• increased urine output

What hormones are secreted by the anterior pituitary gland? What are the target organs for each? What are the general actions of each?

• FSH/ Gonads/ Egg + Sperm development

• LH/ Gonads/ sex steroid secretion

• TSH/ thyroid/ thyroid hormone

• ACTH/ Adrenal Cortex/ cortical steroids

• PRL/ mammary/ milk production

• GH/ Somatic Tissues/ growth

What is the most abundantly secreted hormone of the anterior pituitary? Why?

• Growth Hormone

  • it’s in almost all tissues of the body

What conditions arise from excess GH secretion? Why are there different conditions for childhood and adulthood?

Gigantism/ Acromegaly

What hormones are secreted from the posterior pituitary gland? What are their target organs? What actions do they have on those organs?

• Oxytocin/ uterus/ contraction

• ADH/ kidney/ retain water